linux-kernel - Re: [PATCH v8 6/7] drm/i915: Replace custom intel runtime_pm tracker with ref

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Message-ID: <ZEgpJN6GzSK/w4TV@ashyti-mobl2.lan>
Date:   Tue, 25 Apr 2023 21:25:24 +0200
From:   Andi Shyti <andi.shyti@...ux.intel.com>
To:     Andrzej Hajda <andrzej.hajda@...el.com>
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Eric Dumazet <edumazet@...gle.com>,
        linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org,
        Chris Wilson <chris@...is-wilson.co.uk>,
        netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Andi Shyti <andi.shyti@...ux.intel.com>
Subject: Re: [PATCH v8 6/7] drm/i915: Replace custom intel runtime_pm tracker
 with ref_tracker library

Hi Andrzej,

On Tue, Apr 25, 2023 at 12:05:43AM +0200, Andrzej Hajda wrote:
> Beside reusing existing code, the main advantage of ref_tracker is
> tracking per instance of wakeref. It allows also to catch double
> put.
> On the other side we lose information about the first acquire and
> the last release, but the advantages outweigh it.
> 
> Signed-off-by: Andrzej Hajda <andrzej.hajda@...el.com>

Reviewed-by: Andi Shyti <andi.shyti@...ux.intel.com> 

Andi